Elsevier

Nuclear Physics A

Volume 813, Issues 3–4, 1 December 2008, Pages 199-211
Nuclear Physics A

Neutron decay spectroscopy of neutron-rich oxygen isotopes

https://doi.org/10.1016/j.nuclphysa.2008.09.009Get rights and content

Abstract

Neutron decay spectroscopy of neutron-rich oxygen isotopes has been performed using the two-proton knock-out reaction 9Be(26Ne,X)24,23,22O. A combination of the knock-out of valence and core protons can explain the three observed spectra. These knock-out processes are selective and preferentially populate hole states. The observed narrow resonance state in 23O at an excitation energy of 2.8(1) MeV was assigned to the 5/2+ state.

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    1

    Present address: Physics Department, Illinois Wesleyan University, Bloomington, IL 61701, USA.

    2

    Present address: Laboratoire de Physique Corpusculaire, IN2P3, 14050 Caen, France.

    3

    Present address: Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA.

    4

    Present address: Nishina Center for Accelerator Based Science, RIKEN, Wako, Saitama 351-0198, Japan.

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